Device for sewing books



lid-(ii (No Model.) M. J. BAKER.

DEVICE EOE SEWING BOOKS, PAMPHLETS, & No. 329,254. Patented Oct. 27. 1885,

m i'wsmr,

To all whom it may concern.-

folding-machine,

' cheaply, and perfectly unite the sheets or .leaves together, and is susceptible of being at PATENT Orritcn.

MIFFLIN J. BAKER, OF PHILADELPHIA, PENNSYLVAN IA.

DEVlCEl-OR sewmc sooKs, .PAMPH LETS, &.c.

SPECIFICATION Application filed March 12, 1884.

forming part of Letters Patent No. 329,254. dated October 27, 1885.

Serial No. 123,862. (No model.)

Be it known that I, MIFFLIN J. BAKER, of the city and county of Bhiladelphia, State of Pennsylvania, have invented certain new and useful Devices for Sewing Books, Pamphlets, &c., adapted to be used with paper-folding machines, of which the following is a specification.

My invention relates to anew andimproved apparatus for sewing papers, pamphlets, or books, which can be readily affi-xed to any the object being to readily,

tached to and worked with a folding-machine, thus folding and sewing the sheets or leaves to ether while passing through the folder.

1 Iattain these objects by the mechanism ill ustrated in the accompanying drawings, in which- Figure l is a top plan; Fig. 2, a side elevation; Fig. 3, a longitudinal section through the center of the needle-carrier; Fig. 4, needle-carrier with its end removed, showing the interior devices; Fig. 5, enlarged view of the needle.

Similar letters refer to like parts in all the figures.

Thecarrier at is a short hollow cylinder, milled around its periphery for a purpose hereinafter explained. Around its center a shallow groove, a, is turned, through which the cylinder a is pierced radially with holes a at intervals int-o the interior. Pinsb are fitted into each of these holes, so as to slide in and out. From the outer ends of pins 1) forked carriers or loopers project, as shown in the enlarged view Fig. 5. When the pins are retracted, these forks stand within the line of the groove 41, so that a thread drawn into the groove rests in the fork I), and when the fork is thrust out it carries a loop of the thread lying in the fork with it. The carrier a fits over and turns on a stationary sleeve, 0, from which arms a project backward, where they are held stationary by the rod e, and prevent sleeve 0 from turning. This sleeve has a cam, 0, upon its exterior surface,within the carrier a, over which the inner ends of pins 12 pass as carrier at revolves, by which they are thrust out sufficiently to pierce the folded paper and through the stationary arms 0'. This rod 0 is drawn toward the carrier a by a face-cam, f, loose on the rod 0, and held from sliding on said rod by a collar set thereon, and when turned acts against a stationary face-cam, f,

on arm 0', by which the sliding motion is given to the rodeand collar d. back by a coiled spring at arm 0. The cam f is turned by an arm, fflprojecting therefrom, actuated by a cam or other device wellknown to mechanics, actuated by the moving parts of a paper-folder of any pattern. This is not shown in the drawings, as my device can be adapted to any style or pattern of folder on which it is placed to stitch the folded paper just before it receives its last fold. There is a straight arm, (1, jointed to the grooved collar d above named, that slides in a recess formed in the carrier a parallel with its axis, and extending from its end beyond the center and beyond the thread-groove. This recess is deepest at the end of the carrier, inclining outward toward its other end, so that when arm d is made to slide inward by the movement of collar d, as above described, it runs up the inclined plane of the bottom of the recess, by which it is brought nearer the surface of carrier (1 at the center, as shown in the section Fig. 3. A knife, (1", is pivoted to the upper side of the sliding arm (1, and when the arm d is drawn back it sinks below the surface of the recess. A spring on d. bears down upon the outer end of knife (1*, and elevates its inner or cutting end, and when the knife is thrust inward and upward it passes over the thread in the thread-groove a of the carrier,its edge being on the under side, ready to cut off the thread when depressed, which is effected by the revolution of the carrier, that brings it around opposite the roller 2', hereinafter described, that forces it down against the thread; The roller 1' is located opposite and This rod 6 is thrown Q I I Q 329354 parallel with the earlier, but not in close contact therewith, and it is revolved by the folding-machine, the carrier remaining stationary when not stitching the folded paper that passes down between it and roller '5, that by its pressure causes it to revolve while the paper is running through between them. The paper passes this point just before it receives its last fold, and is there stitched, the loops of thread thrust through it by the forked pins entering a groove in roller t opposite to any depth d esired and to which the groove in i is made. The thread is on a spool, s, from which it passes down into a reservoir, 1', containing a cement of any proper kind, but preferably a compound for which I am about to apply for patent, into which it is submerged and passes into groove to, in which it is held by asmall roller, 3 resting on carrier (4 over the groove, and is carried forward to the paper to be sewed. The forks of the loopers as they come around opposite rollertare thrust out, carry: ing a loop of the thread through the paper into a groove, '5, in said roller 5 opposite. In this way the desired number of loops or stitches are made in each fold of paper as itis carried through.

' ished, the knife before described cuts off thread, and the folded paper having passed, the carrier a ceases to revolve until another is Having thus described my invention, I claim- 1. In a book-stitcher, the carrier a, constructed as above described, having forked looping-pins b, constructed and operating as and for the purposes specified.

2. In a book-stitching machine, the forked looping-pins b, in combination with the grooved carrier-cylinder a, in which they are moved radially out and in for inserting loops 'of thread through the sheets of paper, constructed and arranged substantiall y as and for the purposes specified.

Then the stitching is fin-- I 3. The combination of the forked loopingpins b within the grooved carrier a,for guiding the thread and forming the loop,'as specified.

4. In a book-stitcher, the combination of the carrier a, sleeve a, cam 0 and loopingpins b, constructed and arranged-as specified.

5. The-combination of the driving-rolleri and carrier a, as described, by which intermittent motion is imparted to the carrier at by the passage of the folded paper to be sewed between them, as herein specified.

6. The roller 1', having a groove, 4?, therein for receiving the loops of thread, as described, in combination with looping-pins b and carrier a, substantially as specified.

7. The carrier a, having the guiding-groove at around it for holding and guiding the cemented thread, in combination with the forked looping-pins b.

8. The thread-cutter 01 in combination with the carrier a, substantially as and for the purposes specified.

9. The combination of the thread-cutter d with the carrier a and roller 6, by which the cutter is brought into action, as specified.

10. The combination of the sliding grooved collar on sleeve 0 with the knife-slide d, for bringing the knife into position to cut the thread and retracting it, substantially as specified. I

1]. The combination of the cement-reser voir with the revolving grooved carrier a, by which the cemented threadis laid straight and guided to the forked pins b, as-specified.

12. The combination of the roller 3 with the revolving grooved carrier a, as and for the purposes specified.

In witness whereof I have hereto subscribed my name.

MIFFLIN J. BAKER.

Witnesses:

T. E. HANCOCK, J AMES DEVINE. 

